moving standalone mode to alsa rust direct binding crate & moving led_driver to a specific package

2025-08-04 16:37:40 +00:00
parent 66c4aeffa6
commit 57ace1383b
52 changed files with 859 additions and 577 deletions
@@ -0,0 +1,34 @@
+#include "include/log.h"
+#include "src/leddriver/rpi_leddriver.h"
+#include "src/common.h"
+
+#define CHAN_MAXLEDS 60 // Maximum number of LEDs per channel
+#define LED_NCHANS 8    // Number of LED channels (8 or 16)
+
+#define TX_TEST 0      // If non-zero, use dummy Tx data
+#define LED_NBITS 24   // Number of data bits per LED
+#define LED_PREBITS 4  // Number of zero bits before LED data
+#define LED_POSTBITS 4 // Number of zero bits after LED data
+#define BIT_NPULSES 3  // Number of O/P pulses per LED bit
+
+// Length of data for 1 row (1 LED on each channel)
+#define LED_DLEN (LED_NBITS * BIT_NPULSES)
+
+// Transmit data type, 8 or 16 bits
+#if LED_NCHANS > 8
+typedef uint16_t TXDATA_T;
+#else
+typedef uint8_t TXDATA_T;
+#endif
+
+// Ofset into Tx data buffer, given LED number in chan
+#define LED_TX_OSET(n) (LED_PREBITS + (LED_DLEN * (n)))
+
+// Size of data buffers & NV memory, given number of LEDs per chan
+#define TX_BUFF_LEN(n) (LED_TX_OSET(n) + LED_POSTBITS)
+#define TX_BUFF_SIZE(n) (TX_BUFF_LEN(n) * sizeof(TXDATA_T))
+#define VC_MEM_SIZE (PAGE_SIZE + TX_BUFF_SIZE(CHAN_MAXLEDS))
+
+extern TXDATA_T tx_buffer[TX_BUFF_LEN(CHAN_MAXLEDS)];
+extern TXDATA_T *txdata;
+extern MEM_MAP vc_mem;